Clearing CMOS Settings
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before Working Inside Your Computer. After working inside your
computer, follow the instructions in After Working Inside Your
Computer. For more safety best practices, see the Regulatory
Compliance home page at dell.com/regulatory_compliance.
Prerequisites
1 Remove the computer cover.
2 Follow the procedure from step 1 to step 5 in “Removing the drive cage”.
Procedure
1 Locate the CMOS jumper (CMCL R2) on the system board.
For more information on the location of the CMOS jumper, see “System-
Board Components”.
2 Remove the jumper plug from the password jumper (PSWD1) and place it
on the CMOS jumper.
1 jumper plug 2 password jumper (PSWD1)
3 CMOS jumper (CMCL R2)
3 Follow the procedure from step 3 to step 6 in “Replacing the drive cage”.
4 Replace the computer cover.
5 Turn on your computer.
The CMOS checksum error will be displayed.
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